Connecting device for cords

ABSTRACT

The invention provides a cord tying-up connecting device including a first component ( 1 ) having a groove. One end of first component ( 1 ) includes an insertion end for insertion of a heald into the groove, while the other end includes a cam for connection with second component ( 2 ). Second component ( 2 ) is formed by a hollow body including a bilaterally coincident cam which engages with the cam for first component ( 1 ). A third component ( 3 ) includes a through-with hole and a shoulder for engagement with second component ( 2 ).

BACKGROUND OF INVENTION

a. Field of Invention

The invention relates generally to a heald and cord tying-up connectingdevice, and, more particularly to a heald and cord tying-up connectingdevice applicable for all types of tying-up.

b. Description of Related Art

A heald, also referred to as heddle, is one of a set of parallel cordsor wires in a loom used to separate and guide warp threads and make apath for a shuttle.

For heald and cord tying-up injection, thus far, only a coupling withpolyolefin injection, which enables only the securing of anunidirectional connection, has been used. It has been determined thatthis securing technique has drawbacks in that a disconnection may occurin the case of a return used material or buffing of adjoining couplingsmay occur during weaving. Moreover, the used material of prior-artconnection devices does not provide the required frictional resistance.

SUMMARY OF INVENTION

The above-mentioned drawbacks and deficiencies have been overcome by theheald and cord tying-up connecting device in accordance with the presentinvention. Specifically, the heald and cord tying-up connecting deviceof the present invention includes three components. The first componentis provided with a groove which enables placement of the first componenton the heald and consequently permits motion thereof relative to theheald. One end of the first component is provided with an insertion endfor the heald and another end includes a cam for connection of the firstcomponent with a second component. A second component is formed by ahollow body with a bilaterally congruent cam. The third componentcoincides in form with the first component and has, in addition, athrough-hole for a cord tying device and a shoulder which faces thesecond component for fixed bilateral attachment thereof with the secondcomponent.

The device in accordance with the present invention is universal and canbe used in practice for all types of tying-up. One advantage of thepresent invention is that all components are usable independently, whichhas thus far not been an option with known prior-art devices. Forconventional heald and cord tying devices, a bilateral securingconnection between a heald and a cord tying device has also not beenpossible thus far. With all components being made of a high-resistantrub-proof plastic, the device according to the present invention has along service life even when used with a high speed weaving machine.Lastly, another advantage of the heald and cord tying-up connectingdevice according to the present invention is in the elimination of twoseparate operations, which increases productiveness and reduceslaboriousness.

Additional features, advantages, and embodiments of the invention may beset forth or apparent from consideration of the following detaileddescription, drawings, and claims. Moreover, it is to be understood thatboth the foregoing summary of the invention and the following detaileddescription are exemplary and intended to provide further explanationwithout limiting the scope of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate preferred embodiments of theinvention and together with the detail description serve to explain theprinciples of the invention. In the drawings:

FIG. 1 illustrates a heald and cord tying-up device according to thepresent invention having all three components connected and both theheald and cord tying-up device in a fixed configuration;

FIG. 2 illustrates the first component of the heald and cord tying-updevice of FIG. 1 being provided with a groove;

FIG. 3 illustrates the second component of the heald and cord tying-updevice of FIG. 1 including a hollow body including a bilaterallycongruent cam; and

FIG. 4 illustrates the third component of the heald and cord tying-updevice of FIG. 1 including a through-hole.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to the drawings wherein like reference numerals designatecorresponding parts throughout the several views, FIGS. 1-4 illustratecomponents of a heald and cord tying-up connecting device according tothe present invention.

The heald and cord tying-up connecting device in accordance with FIG. 1consists of three components. The first component 1, illustrated inFIGS. 1 and 2, is provided with a groove which enables placement thereofon heald 5 and translation thereof relative to heald 5. One end of firstcomponent 1 is provided with an insertion end and the other end isprovided with a cam. The second component 2, illustrated in FIGS. 1 and3, is formed by a hollow body with a bilaterally congruent cam forcomplementary engagement with the cam provided on first component 1. Thethird component 3, illustrated in FIGS. 1 and 4, coincides in form withthe first component 1 and has, in addition, a through-hole for cordtying-up device 4 and a shoulder which faces towards second component 2during engagement thereof with second component 2.

In operation, for the heald and cord tying-up connecting deviceaccording to the present invention, first component 1, having beenplaced on heald 5, is connected with second component 2 before levelingduring the preparation phase. In this manner, a sliding motion alongheald 5 is permitted. During assembly of the heald and cord tying-upconnecting device, third component 3 is slid onto cord tying-up device4. Once cord tying-up device 4 has been passed through the eye of heald5 and aligned into the right leveling position, the remaining cord iscut off. Due to upward slippage of the sub-assembly from components 1and 2, heald 5 and cord tying-up device 4 in second component 2 arefirmly clamped. This prevents slippage of cord tying-up device 4 inheald 5. Movement of third component 3 towards second component 2 causesperfect camming of the whole connection with bilateral counter-motionlocking.

Although particular embodiments of the invention have been described indetail herein with reference to the accompanying drawings, it is to beunderstood that the invention is not limited to those particularembodiments, and that various changes and modifications may be effectedtherein by one skilled in the art without departing from the scope orspirit of the invention as defined in the appended claims.

1. A heald and cord tying-up connecting device comprising: a firstcomponent including a groove for placement of said first component on aheald, one end of said first component including an insertion end forinsertion of said heald into said groove and another end of said firstcomponent including a cam; a second component being formed in the shapeof a hollow body and including a bilaterally coincident cam, said secondcomponent being connectable with said cam provided on said firstcomponent by said bilaterally coincident cam; and a third componentincluding a through-hole and a shoulder, said third component beingengageable with said second component at said shoulder, wherein saidshoulder on said third component being configured to connect with saidbilaterally coincident cam on said second component.
 2. A heald and cordtying-up connecting device according to claim 1, said through-hole onsaid third component being provided for insertion of a cord tying-updevice.
 3. A heald and cord tying-up connecting device according toclaim 1, said first, second and third components being made of plastic.